All of the Following Statements with Respect to the Principles

All of the following statements with respect to the principles of operation of automatic transmissions are true except:

A) A planetary gear set is a device with several gears assembled in a compact design.
B) Planetary gears are held together in a sun gear.
C) If an individual component of a planetary gear set is prevented from turning, it will create one of three gear ratios.
D) By combining two or more planetary gear sets, we can create the needed gear ratios, or speeds.